Subserous leiomyoma of uterus

This code identifies a benign tumor originating from the smooth muscle tissue of the uterus, specifically located beneath the serosal layer (the outer covering of the uterus). These leiomyomas, also known as fibroids, can vary in size and may cause symptoms due to their external position.

Assign this code when documentation clearly indicates a subserous leiomyoma of the uterus. This diagnosis is typically made through imaging studies such as ultrasound or MRI, or confirmed during surgical exploration. Use this code when the patient presents with symptoms attributable to this specific type of fibroid, or when it is an incidental finding.

• Differentiate from other leiomyoma locations (e.g., intramural, submucosal) which have distinct codes.
• Ensure documentation specifies "subserous" to support this code; otherwise, a more general leiomyoma code may be appropriate.
• Consider sequencing this code as a primary diagnosis if it is the reason for the encounter, or as a secondary diagnosis if it is an co-existing condition.